求助大神和老师：像以下这些化合物名称可以通过哪些工具查询到呀？我在爱化学上面都查不到
| 1-(2,4-Dimethyl-furan-3-yl)-ethanone |
| 1,4-Benzenediol, 2,5-dimethyl- |
| 1H-Inden-1-one, 2,3-dihydro-3,3,5,6-tetramethyl- |
| 2,3,5-Trimethyl-6-ethylpyrazine |
| 3-(Methylthio)propyl acetate |
| 3-Cyclohexene-1-acetaldehyde, .alpha.,4-dimethyl- |
| 3-Ethoxypropyl acetate |
| 4-(2,6,6-Trimethylcyclohexa-1,3-dienyl)but-3-en-2-one |
| 4,7-Methano-1H-indenol, hexahydro- |
| 4-Acetyl-2-hydroxy-2,4,6-cycloheptatrien-1-one |
| Benzene, 4-ethyl-1,2-dimethoxy- |
| Bicyclohexan-2-one |
| CH3C(O)OCH(CH3)C(O)CH3 |
| Ethyl 2-(5-methyl-5-vinyltetrahydrofuran-2-yl)propan-2-yl carbonate |
| Furan, 2,2'-methylenebis- |
| Propanoic acid, 2-methyl-, 1-(1,1-dimethylethyl)-2-methyl-1,3-propanediyl ester |
| Pyrazine, 2,3-dimethyl- |
| A175-(1-propenyl)-, (E)- |
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